Merge pull request #4010 from zhaowenlan1779/statusbar-retheme

qt_themes: add themed connected/disconnected icons for dark and fix status bar theme updating

src/citra_qt/main.cpp

@@ -448,6 +448,8 @@ void GMainWindow::ConnectWidgetEvents() {
     connect(this, &GMainWindow::UpdateProgress, this, &GMainWindow::OnUpdateProgress);
     connect(this, &GMainWindow::CIAInstallReport, this, &GMainWindow::OnCIAInstallReport);
     connect(this, &GMainWindow::CIAInstallFinished, this, &GMainWindow::OnCIAInstallFinished);
+    connect(this, &GMainWindow::UpdateThemedIcons, multiplayer_state,
+            &MultiplayerState::UpdateThemedIcons);
 }
 
 void GMainWindow::ConnectMenuEvents() {